Knob for M4 Screw

myminifactory

The search is on for a versatile knob that can fill the gap left by a missing M4 screw in my car DVR or dash cam setup. So far, this simple and effective design looks promising and could potentially be adapted to other applications as well. To make it work, an M4 screw along with its corresponding nut will be required. When printing this design, using supports is strictly not recommended. As a bonus, I'm also sharing the Fusion 360 source file for anyone who might want to draw inspiration from this project and create their own versions for different screw sizes. This design is parametric, which means that adjusting some key parameters can easily switch it over to accommodate M3 screws or any other size that's needed.